Gear lock for automobiles



GEAR LOOK FOR AUTOMOBILES Filed Feb. 2'7. 1922 3 sheets Shet 1 a a Ignenta'; fiaws 65 750/2277 I 6 a a Q43 Z fifi wmsl w (filo/mu LAWZJWE C.G. TROSIEN GEAR LOOK FOR AUTOMOBILES Filed Feb. 27 1922 3 Sheets-Sheet 2gja K F VA E .4.. 5* 6 5 Q V A 2 1,; fax

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' C. G. TROSEEN GEAR LOOK FOR AUTOMOBILES Filed Feb- 2'7 1922 3Sheets-Sheet 3 Quanta-5 ii atenteoi A elf 511's MICHIGAN.

GEAR LOCK AUTOMQEILES.

Application filed February 2?, 1922. Serial Ho. 539,435.

To all whom it 'n'iay concern:

Be it known that I, (11mins G. Tnosnna, citizen of the United States.residing at Pontiac, county of ()akland, State of Michian, have inventeda certain new and useful improvement in Gear Locks for Automohiles anddeclare the following to he a full, clear, and exact. description of thesame, such as Will enable others skilled in the art to which it pertainsto make and use the same. reference being had to the accompanyingdrawings, which form a part of this spec-id cation.

My invention relates automobiles and an object of my improve ments is toprovide a means for locking the gears in a special form of constructionhere inafter distinguished.

In the drawings,-

Figure l is a. sectional elevation of a part of a. gear case andapparatus embodying my invention.

Fig. 2 is an end elevation of the same looking from the right of Fig. 1.

3 is sectional plan view, the section being taken on the line ill lli,Fig. 2.

Fig. i is a. partial view similar to Fig. 3 showing the parts in adifferent position.

Fig. 5 is a detail sectional view in elevation taken from the positionindicated by the line V-V., Fi i.

Fig. 6 is a view similar to Fig. i showing a modified construction.

Fig. 7 is a detail showing two positions of She ope ing parts of theconstruction si '11 in rig. t3.

Fig. 2% is a detail MKilUil on the line VlH- -i'lil, Fig. 6.

Fig. 9 is a perspective view of the inching rod.

Fig. 10 is a detail end view showing the actuating pin for the lockingrod of Fig. 9.

Fig. 11 is a sectional detail illustrating the construction of theiork'carr ving sleeve. the

section being taken on the line Xi-Xl,'

Fig. 1.

Fig. 12 is 2 view similar to Fig. .2 showing a means of locking theparts to prevent the removal of an one oi' said parts.

Fig. 13 is a section on the line Xlll Xll i Fig. 12. l

Fig. l'is a view similar to Fig. 15), illustrating the modifiedconstruction shown in Fig. 6. I

ais the casing for the change-speed gearing; Z), l) are guide rods fixedhorizontally to gear locks for in said casin; pa railel to the line ofmovement in the gears and adjacent to said gears. c is a rod paraiiel tothe rods F), i) and located between the same. The rod w is secured atone end in one wall of the casing" (z. and extends part wa through saidcasing. and a are sleeves carrying the forks for engaging and shiftingthe gearing. These sleeves slide upon the rods 71. ('1. indicated. b aregrooves in the rods 5) into which pawls 313 are yieidingly pressed hrsprings, as shown in Fig. to indicaie the various positions of thegears. c is a transverse diainetral aperture through the rod 0 betweenthe sleeves (I and (1 c, are halls located and adapted to travel in theslot a.

As an alternative construction. the haiis may be replaced oycji'lindriczii rods ft- (Fig. (3) (1 and (i are grooves in the sides ofthe sleeves (Z. n adiacent to the rod 0., into which the halls mayet'tend. The diaincter of the balls 0" or the length cylindrical pieces0%; with their inward e. tensions is such that n hen one oi said bailsor cylinders is entirely within the ugerture 0 the other is extendedtherefrom and enin its respective apertures (3 a to pie wit the movementof the corresponding sleeve (I. in this way, only one of said sleevesina v he moved at one time because when one is moved the adjacent hallor cylinder is pressed into the aperture and forces the other of saidhalls or c;v-in ;lei s out of said aperture, engaging it in its respectivc groove F) or F). i

The ahove'is a known construction. 'io provide a lot-hing means for thistype of gearing. l bore a cylindrical aperture all in from the inner endof the rod 0 to join with the transverse aperture .lnto this aperturehis a locking rod e which, in the. form shown in Figs. 1 to i inclusive.re ciprocates axially to perform its fiunction. The casino (1 isprovided with an aperture f" through which the ron e may be inserted andadjusted to place. i is a. vertically-ex tended rod adapted to oscillateor I'OtTi in hearings in the casing m. its lower end being provided witha cam f which engages the outer end oi the locking rod (1. The np'perend of the rod 7' is provided with. a barrel lot-l: which may beactuated by a. key. v i tThen. the sleeves a (I are in neutral positionoi the gearing. the grooves (5 i are opposite u to each other. lion ifthe rod f inrn' n to the position shown in ae is. the iociing iii lit)

its

- that the gearing is locked from movement.

When the rod is turned to the position indicatcd in. Fig. 4, the rod 0may be forced backward by the inward movement of one or the other of theballs 0 thus unlocking the sleeves and gearing. i

iltwill be observed that a rod 7) might be removed, thus unlocking themechanism in the constructions shown in Figs. 1 to 4, inelusive. Toprevent such removal. l provide apertures in the walls oi the sleeves(l, (1 adjacent to the rod (3 which apertures, when the gearing is inits neutral position are axially in line nith the apertures 12) andpiace a ball r in each of said. apertures. I also provide a groove 1)(Figs. 13 and 14;) in the inner wall of the rods 71. 7), in suchposition that they shall be in line with the apertures in which theballs g rcciprocate when the gearing is in its neutral position. Thesize of these balls is such that when the balls 0 c are pressed outwardinto the locking position. as above describerh the halls g, will bethereby torced part way out of their grooves and thus engage in theslots 1). In this way; the rods b, the sleeves (Z, (Z and the rod 0 are.all

locked together and these parts, or any of them, cannot be removed.

In Figs. 6 to 1.0, i have illustrated a modified construction in whichthe cylindrical locking blocks 0 a, 0% are substituted for the halis a,and a rod m having a cam ca. on its inner ends is adapted to be rotatedto force the block 0% out. 'ard into the locking position or to permitthem to be forced in-v vvard, as above described. The rod 7 is adaptedto actuate the rod m by means of an eccentric )in -71 which en a c in aslotea inthe periphery of the rod Mr. at its outer end. By turning therod fto one po sition the mechanism is unlocked and by turning it to theother position the mechanism is locked. The two positions of the rodsand the way in Wllit'll the pin actuates the rod we is illustrated inthr two views of Vhat I claim is:

1. in combination with change speed gearing having reciprocating partsand-a rod 0 extending between said parts, of a. lock mechanism on saidrod adapted to be adjusted .on said rod at will to engage said parts tolock the same from motion or to disengage said parts.

In a change-speed gearing having reeiproeating parts, guides for saidparts, a

rod extending between said parts and an apparatus on said rod adapted tolock said parts and apparatus on said parts adapted to engage the guidesthcrfor when the up paratus on said rod is adjusted to locking position,

3. In a change-speed gearing, reciprocatin parts, a rod extendingbetween said parts, guides for said reciprocating parts and means forbinding together said. rod, reciprocating parts and guides at will.

4. In a change-speed gearing having rcciprocating parts and a rod 0extending be tween said parts in the direction of motion of said partsand carrying an alternative locking mechanism for said parts, anactuating piece extending into a cavity in said rod, and means foroperating said actuating piece whereby said alternative lockingmechanism is caused to lock both of said reciprocating parts. a

5. in a changespeed gearing having two reciprocating parts a rodextending between said parts. in the direction of motion of said. partsand carrying an alternative locking mechanism for said parts, said rod.being provided with an aperture extending in from its end in thedirection of the length of said rod, a locking part extending into saidaperture adapted to actuate said alternative locking mechanism to lockboth of said reciprocating parts.

6. In combination with the mechanism of claim 1, a casing enclosing saidparts and means extending from the outside of said casing for operatingsaid locking part.

7. in a change-speed gearing having reciprocating parts and a rod 0extending be tween said parts and carrying an alterna tive lockingmechanism for said sleeves, an. actuating piece extending into a cavityin said rod, and means for operating said actuating piece whereby saidalternative locking mechanism is caused to lock both of saidreciprocating P2.l'i S/,Sfll(l reciprocating parts being provided withgrooves in their walls adjacent to said rod, reciprocating parts in eachof the last-named grooves, a stationary part adjacent to said wallhaving a groove therein, the construction and relative arrangement beingsuch that when an alternative locking part is actuated into lockingposition itshall force one of the parts in the groove in thereciprocating part into engagement in the groove in said stationarypart, substantially asand for-the purpose described.

In testimony whereof I sign this specification. i

CHARLES G. TROSIEN.

